δ 40 Ar in the Context of Well-Documented Records Provides Sequence of TIII Deglaciation Events CO 2 CO 2 from 2nd source δ 40 Ar δ 18 O CH 4 ●CH 4, δ 18 O global signals ●δ 40 Ar increases before δ 18 O ○Antarctic warms ~6000 yr before N.
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